{"messages":[{"content":"You are a constitutional council ranking individual git commits for ownership allocation.\n\nCompare these two commits. Decide which contributed more lasting value to the project.\n\nJudge substance, not spectacle:\n- Prefer correct, lasting design and real bugfixes over churn, formatting, renames, or generated noise.\n- Prefer clarity and necessity over sheer line count. A small precise change can beat a large diffuse one.\n- Do not favor a side merely because its patch is longer or noisier.\n- Weight what the change does for the project, not the contributor's name.\n\nReturn ONLY a JSON object: {\"winner\": \"A\" or \"B\", \"ratio\": \"N:M\", \"explanation\": \"...\"}\nThe explanation must cite concrete differences in the patches (1-3 sentences).\n\nSide A — contributor: tommy-mor\nSide A — commit message:\n[02cd761c] Make ranked child group pin icons clickable to unpin.\n\nLets users clear the garden pin from the ranked child groups list via the same POST /ui set_garden_pin flow as the HUD and item header.\n\nCo-authored-by: Cursor <cursoragent@cursor.com>\n\nSide A — unified diff (full patch):\ndiff --git a/server/src/html/garden/pin.rs b/server/src/html/garden/pin.rs\nindex 1820d7fe7ee167ecbf5ad5124f23b2ab92ffb01f..b7ea92bbe67d6d499915edb607a3a0b36178d7f6 100644\n--- a/server/src/html/garden/pin.rs\n+++ b/server/src/html/garden/pin.rs\n@@ -101,6 +101,7 @@ pub(super) fn child_row_pin_or_vote(\n     row_item: &ItemId,\n     pinned_room_and_item: Option<&(String, ItemId)>,\n     scope_content: &ContentState,\n+    next_path: &str,\n ) -> maud::Markup {\n     let pin_matches_scope = pinned_room_and_item\n         .map(|(r, _)| r == nav.room_wire.as_str())\n@@ -108,12 +109,25 @@ pub(super) fn child_row_pin_or_vote(\n     let pinned_item = pinned_room_and_item\n         .filter(|_| pin_matches_scope)\n         .map(|(_, i)| i);\n+    let unpin_rpc = template_json_compact(&json!({\n+        \"action\": \"set_garden_pin\",\n+        \"clear\": true,\n+        \"room_wire\": \"\",\n+        \"next\": next_path,\n+        \"form_action\": \"/ui\",\n+    }))\n+    .expect(\"unpin rpc json\");\n \n     html! {\n         @if let Some(pi) = pinned_item {\n             span class=\"ont-garden-child-actions\" data-garden-room=(nav.room_wire.as_str()) {\n                 @if pi == row_item {\n-                    span class=\"ont-garden-pinned-here\" title=\"Pinned\" aria-label=\"Pinned\" { \"📌\" }\n+                    form method=\"POST\" action=\"/ui\" data-navigate=\"full\" class=\"ont-garden-pin-form\" {\n+                        input type=\"hidden\" name=(UI_RPC_FIELD) value=(unpin_rpc);\n+                        button type=\"submit\" class=\"ont-garden-pin-ico ont-garden-pin-ico-active\" title=\"Unpin\" aria-label=\"Unpin from HUD\" {\n+                            span class=\"ont-garden-pin-glyph\" aria-hidden=\"true\" { \"📌\" }\n+                        }\n+                    }\n                 } @else {\n                     @let nv = edge_vote_count_for_pair(scope_content, pi, row_item);\n                     @let tip = format!(\ndiff --git a/server/src/html/garden/render.rs b/server/src/html/garden/render.rs\nindex bd8cbce059ee789de6e8dc9b6f69f54beee2f994..7bfaadc0786b734db8973c53b82296a188d26e22 100644\n--- a/server/src/html/garden/render.rs\n+++ b/server/src/html/garden/render.rs\n@@ -216,7 +216,7 @@ pub(super) async fn render_scope_view(\n                                     @let item_url = item_href(r.item.as_str(), &nav);\n                                     @let score_str = format!(\"{:.3}\", r.score);\n                                     li data-garden-item=(r.item.as_str()) {\n-                                        (child_row_pin_or_vote(&nav, &r.item, pin_ref.as_ref(), scope_content))\n+                                        (child_row_pin_or_vote(&nav, &r.item, pin_ref.as_ref(), scope_content, &next_for_pin))\n                                         a class=\"item-link\" href=(item_url) { code { (item_display_path(r.item.as_str())) } }\n                                         span class=\"ont-rank-score\" { (score_str) }\n                                     }\n@@ -232,7 +232,7 @@ pub(super) async fn render_scope_view(\n                         ul class=\"ont-group-list\" {\n                             @for name in &model.child_rankings.unranked_items {\n                                 li data-garden-item=(name.as_str()) {\n-                                    (child_row_pin_or_vote(&nav, name, pin_ref.as_ref(), scope_content))\n+                                    (child_row_pin_or_vote(&nav, name, pin_ref.as_ref(), scope_content, &next_for_pin))\n                                     @let href = item_href(name.as_str(), &nav);\n                                     a class=\"item-link\" href=(href) { code { (item_display_path(name.as_str())) } }\n                                 }\ndiff --git a/server/static/theme_default.css b/server/static/theme_default.css\nindex 2dabf3a7094cecd89d0c9674d27efe30cd01c010..b846ab86cb6eb5fb56be87efb054fb8b18082583 100644\n--- a/server/static/theme_default.css\n+++ b/server/static/theme_default.css\n@@ -891,8 +891,7 @@ button.ont-pin-btn-active {\n   vertical-align: middle;\n }\n button.ont-garden-pin-ico,\n-a.ont-garden-vote-ico,\n-span.ont-garden-pinned-here {\n+a.ont-garden-vote-ico {\n   font-size: 13px;\n   line-height: 1;\n   padding: 2px 6px;\n@@ -910,6 +909,11 @@ span.ont-garden-pinned-here {\n   align-items: center;\n   justify-content: center;\n }\n+form.ont-garden-pin-form {\n+  display: inline;\n+  margin: 0;\n+  padding: 0;\n+}\n a.ont-garden-vote-ico {\n   gap: 4px;\n }\n@@ -925,10 +929,14 @@ a.ont-garden-vote-ico:hover {\n span.ont-garden-vote-glyph {\n   line-height: 1;\n }\n-span.ont-garden-pinned-here {\n+button.ont-garden-pin-ico-active {\n   border-color: var(--link);\n   color: var(--signal);\n-  cursor: default;\n+  background: color-mix(in srgb, var(--link) 12%, var(--g3));\n+}\n+button.ont-garden-pin-ico-active:hover {\n+  color: var(--signal);\n+  background: color-mix(in srgb, var(--link) 18%, var(--g4));\n }\n button.ont-garden-pin-ico:focus-visible {\n   outline: 2px solid var(--link);\ndiff --git a/server/static/theme_retro_craft.css b/server/static/theme_retro_craft.css\nindex bdd9031b82154a5019782e6dcb8bf7589fafce09..5d4954812ad43f2ee7e63c71c7f0ae0b3e3fc95b 100644\n--- a/server/static/theme_retro_craft.css\n+++ b/server/static/theme_retro_craft.css\n@@ -711,8 +711,7 @@ body.view-ontology span.ont-garden-vote-glyph {\n   line-height: 1;\n }\n body.view-ontology button.ont-garden-pin-ico,\n-body.view-ontology a.ont-garden-vote-ico,\n-body.view-ontology span.ont-garden-pinned-here {\n+body.view-ontology a.ont-garden-vote-ico {\n   font-size: 0.95rem;\n   line-height: 1;\n   padding: 0.1rem 0.35rem;\n@@ -732,10 +731,14 @@ body.view-ontology a.ont-garden-vote-ico:hover {\n   border-color: #a68e6b;\n   background: #ebe6dc;\n }\n-body.view-ontology span.ont-garden-pinned-here {\n+body.view-ontology button.ont-garden-pin-ico-active {\n   border-color: #1a4a8c;\n   background: color-mix(in srgb, #1a4a8c 10%, #f7f3eb);\n-  cursor: default;\n+  color: #0d2d5c;\n+}\n+body.view-ontology button.ont-garden-pin-ico-active:hover {\n+  border-color: #a68e6b;\n+  background: color-mix(in srgb, #1a4a8c 14%, #ebe6dc);\n }\n body.view-ontology form.ont-garden-pin-form {\n   display: inline;\ndiff --git a/test/browser_garden_pin.clj b/test/browser_garden_pin.clj\nindex d4fa9ed60b45e872ec60e29307cfa61bcd9dd6b2..579976f4c2493a149f9eba081862ca07919f4fe9 100644\n--- a/test/browser_garden_pin.clj\n+++ b/test/browser_garden_pin.clj\n@@ -58,10 +58,11 @@\n      (let [alice-token (oauth/fetch-bearer-token! base-url :username \"alice\")\n            thread-tag \"browser-garden-pin\"\n            raw (str \"# \" thread-tag \"\\n\\n\"\n-                    \"~/gp-pin-a {alpha}\\n\"\n-                    \"~/gp-pin-b {beta}\\n\"\n+                    \"~/gp-parent {parent}\\n\"\n+                    \"~/gp-parent/pin-a {alpha}\\n\"\n+                    \"~/gp-parent/pin-b {beta}\\n\"\n                     \"{pin test vote}\\n\"\n-                    \"~/gp-pin-a 2:1 ~/gp-pin-b\\n\")\n+                    \"~/gp-parent/pin-a 2:1 ~/gp-parent/pin-b\\n\")\n            post-resp (oauth/http-post-json\n                       (str base-url \"/api/v0/rpc\")\n                       [{\"Post\" {\"room\" \"public\"\n@@ -77,23 +78,43 @@\n              (core/with-page [pg (core/new-page-from-context ctx)]\n                (page/navigate pg (str base-url \"/login\"))\n                (is (wait-for-text pg \"body\" \"@alice\" 15000) \"alice session after login\")\n-               (page/navigate pg (str base-url \"/~/gp-pin-a\"))\n-               (is (wait-for-text pg \".ont-item-shell\" \"~/gp-pin-a\" 15000) \"on item a page\")\n+               (page/navigate pg (str base-url \"/~/gp-parent/pin-a\"))\n+               (is (wait-for-text pg \".ont-item-shell\" \"~/gp-parent/pin-a\" 15000) \"on item a page\")\n                ;; Native form POST /ui (data-navigate=full) — not fetch/eval\n                (locator/click (page/locator pg \".ont-item-pin-zone form.ont-pin-form button[type=submit]\"))\n-               (is (wait-for-text pg \"#slug-pin-hud\" \"gp-pin-a\" 15000)\n+               (is (wait-for-text pg \"#slug-pin-hud\" \"gp-parent/pin-a\" 15000)\n                    \"HUD shows pinned item label after redirect\")\n-               (page/navigate pg (str base-url \"/~/gp-pin-b\"))\n-               (is (wait-for-text pg \".ont-item-shell\" \"~/gp-pin-b\" 15000) \"on item b page\")\n+               (page/navigate pg (str base-url \"/~/gp-parent/pin-b\"))\n+               (is (wait-for-text pg \".ont-item-shell\" \"~/gp-parent/pin-b\" 15000) \"on item b page\")\n                (is (wait-for-text pg \"a.ont-vote-compare-btn\" \"vote\" 10000)\n                    \"vote link visible vs pinned item\")\n-               ;; HUD clears pin (POST set_garden_pin clear), not navigate to item\n+               ;; Unpin from ranked child groups on parent page\n+               (page/navigate pg (str base-url \"/~/gp-parent\"))\n+               (is (wait-for-text pg \".ont-tab-panel-children\" \"ranked child groups\" 15000)\n+                   \"parent page shows ranked child groups\")\n+               (is (wait-for-text pg \".ont-ranking-list button.ont-garden-pin-ico-active\" \"📌\" 10000)\n+                   \"pinned row shows active pin in ranked list\")\n+               (locator/click (page/locator pg \".ont-ranking-list button.ont-garden-pin-ico-active\"))\n+               (is (wait-for-absence-substr pg \"#slug-pin-hud\" \"gp-parent/pin-a\" 15000)\n+                   \"HUD clears after unpin from ranked child list\")\n+               (is (wait-for-absence-substr pg \".ont-ranking-list\" \"ont-garden-vote-ico\" 10000)\n+                   \"vote icons removed from ranked list after unpin\")\n+               (page/navigate pg (str base-url \"/~/gp-parent/pin-b\"))\n+               (is (wait-for-text pg \".ont-item-shell\" \"~/gp-parent/pin-b\" 15000) \"on item b page again\")\n+               (is (wait-for-absence-substr pg \"body\" \"ont-vote-compare-btn\" 15000)\n+                   \"compare vote CTA removed after ranked-list unpin\")\n+               ;; HUD unpin still works from item page context\n+               (page/navigate pg (str base-url \"/~/gp-parent/pin-a\"))\n+               (locator/click (page/locator pg \".ont-item-pin-zone form.ont-pin-form button[type=submit]\"))\n+               (is (wait-for-text pg \"#slug-pin-hud\" \"gp-parent/pin-a\" 15000)\n+                   \"re-pin from item page for HUD unpin test\")\n+               (page/navigate pg (str base-url \"/~/gp-parent/pin-b\"))\n                (locator/click (page/locator pg \"#slug-pin-hud button.slug-pin-hud-unpin-btn\"))\n-               (is (wait-for-absence-substr pg \"#slug-pin-hud\" \"gp-pin-a\" 15000)\n+               (is (wait-for-absence-substr pg \"#slug-pin-hud\" \"gp-parent/pin-a\" 15000)\n                    \"HUD clears after unpin from HUD button\")\n                (is (wait-for-absence-substr pg \"body\" \"ont-vote-compare-btn\" 15000)\n                    \"compare vote CTA removed after HUD unpin on same reload\")\n-               (is (str/includes? (or (page/url pg) \"\") \"/~/gp-pin-b\")\n+               (is (str/includes? (or (page/url pg) \"\") \"/~/gp-parent/pin-b\")\n                    \"still on item b after HUD unpin\"))))))\n \n      (finally\n\n\nSide B — contributor: tommy-mor\nSide B — commit message:\n[5350388a] Add pool-scoped voting: /vote?pool=<parent> picks pairs from children.\n\n- /vote now accepts an optional `pool` param (parent item path). When\n  provided without left/right, it picks the first unvoted pair from the\n  pool's children. When provided alongside left/right, it constrains\n  \"next pair\" navigation to siblings within the pool.\n- \"vote on children\" button appears on item pages with ≥2 children,\n  linking to /vote?pool=<item>.\n- Pool is threaded through VoteComparePost → success JS so in-page\n  morph after voting keeps the pool context for next-pair navigation.\n\nCo-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>\n\nSide B — unified diff (full patch):\ndiff --git a/server/src/api/ui_html.rs b/server/src/api/ui_html.rs\nindex 5faa642451d69555cb391974beb0ad22c9355c8c..b79efdb4d52bd445a67f38cbfd61d3507d2b3014 100644\n--- a/server/src/api/ui_html.rs\n+++ b/server/src/api/ui_html.rs\n@@ -193,6 +193,7 @@ async fn dispatch_ui_action(\n             ratio_right,\n             explanation,\n             next,\n+            pool,\n             form_action,\n         } => {\n             if form_action != \"/ui\" {\n@@ -239,6 +240,9 @@ async fn dispatch_ui_action(\n                         .into_response();\n                 }\n             };\n+            let pool_id = pool.as_deref().and_then(|p| {\n+                crate::path_types::ItemId::parse(p.trim()).map(|i| i.normalized_storage())\n+            });\n             let mut rl = ratio_left.trim().parse::<i32>().unwrap_or(0).max(0);\n             let mut rr = ratio_right.trim().parse::<i32>().unwrap_or(0).max(0);\n             if rl == 0 && rr == 0 {\n@@ -294,6 +298,7 @@ async fn dispatch_ui_action(\n                         &thread_tag,\n                         &left_id,\n                         &right_id,\n+                        pool_id.as_ref(),\n                         pid.as_str(),\n                         post_index,\n                     )\ndiff --git a/server/src/html/garden/pin.rs b/server/src/html/garden/pin.rs\nindex 5865cfdbc06aeb6555c97380e25591fae6b3d125..1820d7fe7ee167ecbf5ad5124f23b2ab92ffb01f 100644\n--- a/server/src/html/garden/pin.rs\n+++ b/server/src/html/garden/pin.rs\n@@ -79,7 +79,7 @@ pub(super) fn ont_pin_vote_controls(\n                         }\n                     }\n                 } @else {\n-                    a class=\"ont-vote-compare-btn\" href=(vote_compare_href(nav, pi, &current, None)) title=\"Compare and vote\" {\n+                    a class=\"ont-vote-compare-btn\" href=(vote_compare_href(nav, pi, &current, None, None)) title=\"Compare and vote\" {\n                         span class=\"ont-vote-glyph\" aria-hidden=\"true\" { \"⚖\" }\n                         span { \"vote\" }\n                     }\n@@ -121,7 +121,7 @@ pub(super) fn child_row_pin_or_vote(\n                         if nv == 1 { \"\" } else { \"s\" },\n                     );\n                     @let aria = format!(\"Vote; {} pairwise {}\", nv, if nv == 1 { \"vote\" } else { \"votes\" });\n-                    a class=\"ont-garden-vote-ico\" href=(vote_compare_href(nav, pi, row_item, None)) title=(tip) aria-label=(aria) {\n+                    a class=\"ont-garden-vote-ico\" href=(vote_compare_href(nav, pi, row_item, None, None)) title=(tip) aria-label=(aria) {\n                         span class=\"ont-garden-vote-glyph\" aria-hidden=\"true\" { \"⚖\" }\n                         span class=\"ont-garden-vote-count\" { (format!(\"{}\", nv)) }\n                     }\ndiff --git a/server/src/html/garden/render.rs b/server/src/html/garden/render.rs\nindex 5c3986ca36902f6c9019a4b5590f0b3b9d2cb4ff..bd8cbce059ee789de6e8dc9b6f69f54beee2f994 100644\n--- a/server/src/html/garden/render.rs\n+++ b/server/src/html/garden/render.rs\n@@ -29,6 +29,7 @@ use super::{\n     item::{child_depth_from_uri, item_code_label, item_display_path, item_href},\n     item_page::{build_item_page_view_model, sibling_nav_markup},\n     pin::{child_row_pin_or_vote, ont_pin_vote_controls, pinned_item_from_jar},\n+    vote::vote_pool_href,\n };\n \n pub(super) async fn render_scope_view(\n@@ -186,12 +187,21 @@ pub(super) async fn render_scope_view(\n             }\n \n             section class=\"ont-tab-panel ont-tab-panel-children\" {\n+                @let total_children = model.child_rankings.component_rankings\n+                    .iter().map(|c| c.ranked.len()).sum::<usize>()\n+                    + model.child_rankings.unranked_items.len();\n                 h3 {\n                     \"ranked child groups\"\n                     @if model.child_depth > 1 {\n                         \" \"\n                         span class=\"muted\" { (format!(\"(depth {})\", model.child_depth)) }\n                     }\n+                    @if total_children >= 2 {\n+                        \" \"\n+                        a class=\"ont-vote-children-btn\" href=(vote_pool_href(&nav, &model.item)) {\n+                            \"vote on children\"\n+                        }\n+                    }\n                 }\n                 @if model.child_rankings.component_rankings.is_empty() {\n                     p class=\"muted\" { \"no voted pairs yet in this scope\" }\ndiff --git a/server/src/html/garden/tests.rs b/server/src/html/garden/tests.rs\nindex 6900a6795bcde866a176722149d6378e5127b4c3..c2036fca7752aef63d260e36cfe9649f63b5c550 100644\n--- a/server/src/html/garden/tests.rs\n+++ b/server/src/html/garden/tests.rs\n@@ -105,7 +105,7 @@ fn suggest_next_vote_pair_prefers_unvoted_sibling_pair() {\n     let content = content_for_garden_view(&reduced, &ScopeId::Public);\n     let a = ItemId::parse(\"~/topic/a\").unwrap().normalized_storage();\n     let b = ItemId::parse(\"~/topic/b\").unwrap().normalized_storage();\n-    let next = suggest_next_vote_pair(content, &a, &b).expect(\"next sibling pair\");\n+    let next = suggest_next_vote_pair(content, &a, &b, None).expect(\"next sibling pair\");\n     assert_ne!(\n         canonical_edge_items(&next.0, &next.1),\n         canonical_edge_items(&a, &b)\ndiff --git a/server/src/html/garden/vote.rs b/server/src/html/garden/vote.rs\nindex 1d7fc8aa7436bfa9c1186dfd940a8d751ab7e088..2682cfcbd2f834b56459a02831aa225cffe67c58 100644\n--- a/server/src/html/garden/vote.rs\n+++ b/server/src/html/garden/vote.rs\n@@ -211,14 +211,15 @@ pub(crate) async fn vote_compare_post_success_js(\n     _thread_tag: &str,\n     left: &ItemId,\n     right: &ItemId,\n+    pool: Option<&ItemId>,\n     _post_id: &str,\n     _post_idx: Option<usize>,\n ) -> String {\n     let reduced = state.reduced.read().await;\n     let content = content_for_garden_view(&reduced, &nav.scope());\n     let edge_history = vote_edge_history_markup(content, left, right);\n-    let next_pair = suggest_next_vote_pair(content, left, right);\n-    let nav_markup = vote_compare_nav_markup(nav, next_pair.as_ref());\n+    let next_pair = suggest_next_vote_pair(content, left, right, pool);\n+    let nav_markup = vote_compare_nav_markup(nav, next_pair.as_ref(), pool);\n     drop(reduced);\n     JsBuilder::new()\n         .morph_inner_selector(\"#vote-edge-history-region\", edge_history)\n@@ -231,27 +232,39 @@ pub(super) fn vote_compare_href(\n     left: &ItemId,\n     right: &ItemId,\n     thread_override: Option<&str>,\n+    pool: Option<&ItemId>,\n ) -> String {\n     let left_q = urlencoding::encode(left.as_str());\n     let right_q = urlencoding::encode(right.as_str());\n-    let base = format!(\n+    let mut base = format!(\n         \"{}/vote?left={}&right={}\",\n         nav.room_path_prefix_for_vote_compare(),\n         left_q,\n         right_q\n     );\n     if let Some(t) = thread_override.filter(|s| !s.is_empty()) {\n-        format!(\"{}&thread={}\", base, urlencoding::encode(t))\n-    } else {\n-        base\n+        base = format!(\"{}&thread={}\", base, urlencoding::encode(t));\n+    }\n+    if let Some(p) = pool {\n+        base = format!(\"{}&pool={}\", base, urlencoding::encode(p.as_str()));\n     }\n+    base\n+}\n+\n+pub(super) fn vote_pool_href(nav: &ThreadNav, pool_item_str: &str) -> String {\n+    format!(\n+        \"{}/vote?pool={}\",\n+        nav.room_path_prefix_for_vote_compare(),\n+        urlencoding::encode(pool_item_str)\n+    )\n }\n \n fn vote_compare_nav_markup(\n     nav: &ThreadNav,\n     next_pair: Option<&(ItemId, ItemId)>,\n+    pool: Option<&ItemId>,\n ) -> maud::Markup {\n-    let next_pair_href = next_pair.map(|(nl, nr)| vote_compare_href(nav, nl, nr, None));\n+    let next_pair_href = next_pair.map(|(nl, nr)| vote_compare_href(nav, nl, nr, None, pool));\n     html! {\n         div class=\"vote-compare-nav\" {\n             @if let Some(href) = &next_pair_href {\n@@ -267,8 +280,15 @@ pub(super) fn suggest_next_vote_pair(\n     content: &ContentState,\n     current_left: &ItemId,\n     current_right: &ItemId,\n+    pool_parent: Option<&ItemId>,\n ) -> Option<(ItemId, ItemId)> {\n-    let pool: Vec<ItemId> = if current_left.parent().as_ref().map(|p| p.as_str())\n+    let pool: Vec<ItemId> = if let Some(parent) = pool_parent {\n+        content\n+            .item_children\n+            .get(parent)\n+            .map(|s| s.iter().cloned().collect())\n+            .unwrap_or_default()\n+    } else if current_left.parent().as_ref().map(|p| p.as_str())\n         == current_right.parent().as_ref().map(|p| p.as_str())\n     {\n         current_left\n@@ -322,10 +342,14 @@ pub(super) fn vote_compare_item_card(\n }\n #[derive(Debug, Deserialize)]\n pub struct VoteCompareQuery {\n-    pub left: String,\n-    pub right: String,\n+    #[serde(default)]\n+    pub left: Option<String>,\n+    #[serde(default)]\n+    pub right: Option<String>,\n     #[serde(default)]\n     pub thread: Option<String>,\n+    #[serde(default)]\n+    pub pool: Option<String>,\n }\n \n /// Public pairwise vote UI — `/vote?left=&right=&thread=`.\n@@ -376,17 +400,53 @@ async fn vote_compare_inner(\n     jar: CookieJar,\n     uri: Uri,\n ) -> axum::response::Response {\n-    let left = match ItemId::parse(q.left.trim()) {\n-        Some(i) => i.normalized_storage(),\n-        None => return (StatusCode::NOT_FOUND, \"bad left item\").into_response(),\n+    let pool_id: Option<ItemId> = match q.pool.as_deref() {\n+        Some(p) => match ItemId::parse(p.trim()) {\n+            Some(i) => Some(i.normalized_storage()),\n+            None => return (StatusCode::BAD_REQUEST, \"bad pool item\").into_response(),\n+        },\n+        None => None,\n     };\n-    let right = match ItemId::parse(q.right.trim()) {\n-        Some(i) => i.normalized_storage(),\n-        None => return (StatusCode::NOT_FOUND, \"bad right item\").into_response(),\n+\n+    let (left, right) = match (q.left.as_deref(), q.right.as_deref()) {\n+        (Some(l), Some(r)) => {\n+            let left = match ItemId::parse(l.trim()) {\n+                Some(i) => i.normalized_storage(),\n+                None => return (StatusCode::NOT_FOUND, \"bad left item\").into_response(),\n+            };\n+            let right = match ItemId::parse(r.trim()) {\n+                Some(i) => i.normalized_storage(),\n+                None => return (StatusCode::NOT_FOUND, \"bad right item\").into_response(),\n+            };\n+            if left == right {\n+                return (StatusCode::BAD_REQUEST, \"items must differ\").into_response();\n+            }\n+            (left, right)\n+        }\n+        (None, None) => {\n+            let Some(pool) = pool_id.as_ref() else {\n+                return (StatusCode::BAD_REQUEST, \"provide left+right or pool\").into_response();\n+            };\n+            let reduced = state.reduced.read().await;\n+            let content = content_for_garden_view(&reduced, &nav.scope());\n+            let children: Vec<ItemId> = content\n+                .item_children\n+                .get(pool)\n+                .map(|s| s.iter().cloned().collect())\n+                .unwrap_or_default();\n+            if children.len() < 2 {\n+                drop(reduced);\n+                return (StatusCode::BAD_REQUEST, \"pool has fewer than 2 children to compare\").into_response();\n+            }\n+            let pair = suggest_next_pair_in_pool(&content.ranking_group, &children, None);\n+            drop(reduced);\n+            match pair {\n+                Some(p) => p,\n+                None => return (StatusCode::BAD_REQUEST, \"no pairs available in pool\").into_response(),\n+            }\n+        }\n+        _ => return (StatusCode::BAD_REQUEST, \"provide both left and right, or just pool\").into_response(),\n     };\n-    if left == right {\n-        return (StatusCode::BAD_REQUEST, \"items must differ\").into_response();\n-    }\n \n     let reduced = state.reduced.read().await;\n     let content = content_for_garden_view(&reduced, &nav.scope());\n@@ -409,7 +469,7 @@ async fn vote_compare_inner(\n     let left_body = content.item_bodies.get(&left).cloned();\n     let right_body = content.item_bodies.get(&right).cloned();\n     let item_bodies_for_cards = content.item_bodies.clone();\n-    let next_pair = suggest_next_vote_pair(content, &left, &right);\n+    let next_pair = suggest_next_vote_pair(content, &left, &right, pool_id.as_ref());\n     drop(reduced);\n \n     let title = format!(\n@@ -432,6 +492,7 @@ async fn vote_compare_inner(\n         \"ratio_right\": {\"$form\": \"ratio_right\"},\n         \"explanation\": {\"$form\": \"explanation\"},\n         \"next\": next_path,\n+        \"pool\": pool_id.as_ref().map(|p| p.as_str()),\n         \"form_action\": \"/ui\",\n     }))\n     .expect(\"vote compare rpc json\");\n@@ -456,7 +517,7 @@ async fn vote_compare_inner(\n                 Some(&item_bodies_for_cards),\n             ))\n         }\n-        (vote_compare_nav_markup(&nav, next_pair.as_ref()))\n+        (vote_compare_nav_markup(&nav, next_pair.as_ref(), pool_id.as_ref()))\n         div id=\"vote-edge-history-region\" {\n             (edge_history)\n         }\ndiff --git a/server/src/html/ui_action.rs b/server/src/html/ui_action.rs\nindex dd5294202569454acf9f41b458718700bbf96f39..2589a2cc00bb7b18cd19ebcbb938083122d6921d 100644\n--- a/server/src/html/ui_action.rs\n+++ b/server/src/html/ui_action.rs\n@@ -50,6 +50,9 @@ pub enum HtmlUiAction {\n         explanation: String,\n         /// Same-origin path after successful post (JS redirect).\n         next: String,\n+        /// Pool parent item path, if the vote was initiated from a pool URL.\n+        #[serde(default)]\n+        pool: Option<String>,\n         #[serde(default = \"default_ui_form_action\")]\n         form_action: String,\n     },\n","role":"user"}],"model":"openai/gpt-chat-latest"}